But in a confrontation last fall with a 14-year-old boy, Rossi was anything but a stellar representative of the force.

In profanity-laden terms, Rossi is seen on video telling the teen what’s going to happen if he doesn’t shut up.

“I’ll break your f***ing neck,” he says in the recording, which News 8 obtained through an open records request. “You understand me? You understand me?”

The nearly four-minute video was recorded on a phone in the boy’s hand. It doesn’t appear the officer had any idea the teen was recording the incident.

“This is not good,” said Dallas civil rights attorney Scott Palmer, who reviewed the video for WFAA. “Hopefully this is not representative of the Dallas Police Department, but this is what cell phones show. This shows what happens on the street.”